Question

Explain how to estimate the product of 18.3(6.37).

Answer 1

Sample Response: Round to the greatest place value to do the math in your head. 18.3 rounds to 20, and 6.37 rounds to 6. The estimated product will be 20 times 6, which is 120.

Answer 2

You could round both numbers and then multiply:

18.3 ---> 18

6.37 ---> 6

18 * 6 = 108

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